I want to check my understanding (or lack of it) about hyphenation. I find hyphens very confusing. I have a phrase "Proudly Sydney Based" for a headline. My understanding is that as written above there is no hyphen, but if I wrote a "Sydney-based company" I would need to use a hyphen. Can you please advise whether this is correct?
First, hyphens must never be used interchangeably with dashes (see the Dashes section link given below), which are noticeably longer. Second, there should not be spaces around hyphens.
Incorrect: 300—325 people Incorrect: 300 - 325 people Correct: 300-325 people
and in your case :
Proudly Sydney-Based is correct and no more anxiety about it,must used as headline.